Road form



Nov. 6, 1928.

J. N. HELTZEL ROAD FORM Filed Sept. 24, 1927 '2 Sheets-Sheet 1 Y F/E. i.

Nov. 6, 1928. 1,690,295

J. N. HELTZEL v ROAD FORM Filed Sept.24, 1927 i 2 Sheets-Sheet 2 Patented Nov. 6, 1 928. v

PATENT OFFICE umrrzo STATES J'QI-INN. HELTZEL, OF WARREN, OHIO.

roam,

Application flle'd September 24,"1 927. Serial no. 221,809.

"The present invention relates to road form railssuch as are employed in the building of? such articles are shed oflthe rail tread.

Another object of the, invention is the pro vision of novel bracingand stake receiving means on the rail. I Affu'rther object is the provlsion of novel meansfor binfiingthe rail and st aketogether,

andastillfurtheri object is to provide means whichsimultaneousl 1 with the binding of the rail and stake toge her will also create an expansive action'between the tread andbase flangesof the'rail. v r e The inventionhas for another object the provision of novel means for simultaneously clampingorbin ing adjoining rails and corresponding stakestogether. and also obtaining anexpansive action within the rails to secure them together in" alinem nt. p

A stillifurther object is the provision of rail bracing, staking and binding means of siniple, practical and eflicient construction, which maybe readilyformed'from sheet metal ex cepting. the stakes.

With the foregoing and other objects in view, which will be apparent as the descrip tion proceeds, the invention resides in the construction and arrangement of parts, as hereinafter described and claimed, it being understood that changes can be made-within the scope ofwhat is claimed, without departing from the spiritiofthe invention.

The invention is illustrated in the accompanying drawings, wherein Figure 1 is an elevation of the improved form. r A 1 Fig. 21isa cross section of one ofthe rails showingthelbracing and binding means in end view.

FigBiS a crosssection on the line 3 -3 of ig. 4 is ahorizontal section'on the line Heiri a. k

'Fig. 5 is a view correspnding with Fig. '2 illustrating amodification.

ficatifon.

6is perspective view of another modi- Fig'sf7, 8 and 9 are views corresponding with F ig. 2'd'ep icting other modifications.

Fig. 10 is a section on the line 10'10 of Fig. '9.

The form rails are bent from "sheet metalo suitable gage, and each rail has the vertical web 14,'base' or base'fla'nge with an upa standing flange orlip 16, and tread or tread flange 17 with a depending secondary flange or lip 18. The bevelled tread issu-bstantially the same asdisclosed in my Patent No.

I 1,637,998, granted August 2, 1927, and provides a single line-of contact immediately above the web 14. Y

" The base15 is wider than the tread 17, and they are connected by a brace 19 of suit-able sheet metal-which has its upper and lower ends overlapping and riveted, welded or otherwise secured-to the lips or secondary flanges 1'6 and'18, preferably at theinner side" thereof. One of the braces19 may be located adjacent to each end of the rail and one or more braces may be provided at points between theendsofthe rail. Said braces connecting the trea'd'and" base of the rail will strengthen same opposite to the web 14.

Each brace '19 has an 'outstruck or outwardly pressed portion 20 with an upper aper-' ture 21 to receive a stake 22 driven downwar'clly through the brace into the ground or sub-base, the rail base 15 having an aperture 23 below "the aperture 21 for the passage of the stake. The portion 21'is semi-circular in horizontal section so'a-s to'fit snugly against the stake 22, and the aperture 21' is ofja siz to'snugly receive the stake, so thatmaterial falling overthe tread of the rail will not drop down around the stake-within the stake opening or socket. The portion 20 also'provides a concaved seat forthe stake.

A'binding member 24. composed of alplate of suitable sheet metal, is slidable in the rail,

7 and as shown isslidable init-he adjacentend portions of adjoining alined rails to maintain said i-a-ilsin a'linement end to end. The menr bei- 24'hasthe upper edge portion 25 inclined to bear upwardly against the tread 17 of each rail, with the upper edgeofjthe member 24 seating in thebendbetween the web'l and tread 17, and the lower edge portion 26 of said member-is inclined re'vei'sely and-seats in the bendibetween the web 14 andbaselfio f each rail. The member 24 has the outstandin portion 27 of-V-shaped erosseeefiien provitl is l'QrilllQllt in vertical and horizontal direciug a ridge extending lions t ransversely ot' the rail. edges 28 are pr ed outwardly from the ridge of the portion 2? to contact with the stakes l2 behind the braces 1!). so that when the member Q-l is driven behind the braces and stakes (toward the left in 4;). the members Q-Lt tend to separate the rail webs ll and stakes thereby clamping the stakes against the portions 20 and bases 15. This will bind the rails and hitllfl together to prevent relative vertical nmvement thereot. At the same time, when the member 2% is driven between the webs 14 and stakes 22, said member is brougl'itunder compression, tending to flatten said member, and as a result the upper and lower edges of the member are moved or forced apart against the tread and base of each rail. The member Q-t is thus given a vertical expansive action so as to bring the upper and lower portions thereof tightly against the treads and bases oi the rails. therebv creating a binding action between said member 2a and rails simultaneously with the binding of the rails and staliestogether. This will securely bind the rails, stakes and member it together, to hold the rails together in atinemcnt and in proper position on the stakes.

The member '24 has a. striking lug 29 thereon near one end to receive the blows of a hammer or other implement for driving the member it in either direction, and it will be apparent that the member 52% may be retracted into one rail (the right hand rail as seen in Figs. 1 and i) when the rails are separated and assembled, and said member may then be driven into the other rail when they are positioned end to end and the stakes 22 driven through the apertures 21 and 23. As the wedges 28 are. driven into engagement with the stakes as seen in Fig. 4-. thereby clamping or binding the stakes and braces together; the pressure everted on the intermediate po1= tion of the member ll will be transmitted upwardtv and downwardly to the upper and lower edges ot said member so as to t'orce them tightly against the treada and bases of the rails. thereb binding the member 24 and rails together also. l driving the member 2iin the opposite direction this will relieve the pressure between said member and rails. as well as releasing the stakes 22. \Vith this arrangement it is possible to simultaneously bind the rails and stakes together as well as binding the rails together through the joint member ll. The member Q-l may be positioned to hold the rails in alinemeut with the stakes 2' loose so that the stakes may be driven or withdrawn while maintaining the rails in alinement endto end. When the member llis retracted the rails may be assembled or separated, and the stakes 92 may also be driven into pla e or withdrawn. and by a single op eration. that ol driving the member 'i-l into place. the rails stakes and member :L'l ar bound togethcrczu-h to the others. The membcr 2i may also be moved to releasim position iron: the stakes while maintaining the rails in alinem tband it is unncr'e -sanv to remove the stakes. and the stakes may alro be renlovcd without releas-;ing the member '2 l thus providing advantages in building up and launching down the form. When the mcu'ibcr 24 is drivon out of wedging contact. with the stakes it is capable ol' sliding 'i'reelv in the raile, but when it. is driven into wedging contact with the stake. said member expands or spreads vertically so ttf-t to become tightly (lfx'litllltltll between the treads and bases of the raila. The lug E29 striking the brace 19 will prevent. the member 2 -itrom being driven too tar so as to pass completely from the corresminding rail. and will prevent the wedges 28 from pass-i 9' beyond the i-ttll((f-l.

Fig. 5 shows a horizontal rail tread 17 on which is bolted or otherwise secured an angle iron 30 having an upstanding flange above the rail web to support the wheels of bridges, finishing machines, etc.. as well as strihcotl's and other inmlements on the rail with a single line of contact. The rail tread 17" as well as the rail tread 17 above described may thus be made of considerable width, whereas is would be impractical to make the ordinary rail tread of unusual width because the surface would be too wide for the contact of: the wheels of finishing and other machines, owing to the fact that sand, pebbles, stones and other particles would accumulate on such rail treads. whereas with the present invention a wide tread may be used with only a single line o't contact between the tread and the wheel or implement n'ioving thereon.

Fig. 6 illustrates an auxiliary tread 31 mounted on a horizontal rail tread 17*, said aimiliarv tread 3-31 being of triangular section, and may be formed of sheet metal or tubular stock, to provide a single line oi contact and a beveled or inclined surface sloping outwardly from said line of contact. As shown. the inclined or bevelled portions are pressed downwardly. as at 32. for receiving clamping bolts or elements which tasten the auxiliarvtrcads down on the. rail treads.

Fig. 7 showsa portion 17" bent back outwardly from the upper edge of the rail web it", and having an outstanding flange 19" to which the upper end oi the brace 19 is secured. The binding member 24 has its up per end 25 extending verticall into the pocket or groove between the web ll"- and portion 17 The doubled portion or bend between the web It and portion 17" provides a single line of contact for the wheel or device which moves on the rail.

Fig. 8 illustrates a rail the tread 17 of lit) which is bevelled outwardly and inwardly so as to slope insopposite directions, {whereby sand, pebbles, stones and other particles will be shed inwardly and oi twardly. The tread has aridge formed by a rather sharpangle so as to provide a single line. of "contact for wheels and other devices movable on the rail.

The binding member 24 bears upwardly underthe ridge of the treadand has a downturned fian e 25' hearing against the inner portion. of ihe tread 17% I Figs. 9 and 10 illustrate the use of oblique slots 28 in the portion 27 of the member 24 through which the stakes 22 pass when in (toward the leftin Fig. 10) with the stakes 22 driven downthrongli the braces 19, slots 28.and rail bases 15". The inner edges of the slots 28 as well as the wedges 28 provide oblique cam surfaces to contact with the stakes for binding the parts together.

Members 24, 24., 24 and 24:", and the like,

-may also be used in connect-ion with braces and stakes between the ends of the rails, and

said members when used with individual stakes may be of shorter length and need have only a single wedge 28 or slot 28", the

double wedges or slots being used at the rail joints.

Having thus described the inventlon, what is claimed as new is 1 1. Means adapted to be disposed in a concrete form rail and arranged to have a trans verse compressive action in the rail, said means being constructed so as to exert a ver tical expansive force when under transverse compression. g

2. Means adapted to slide longitudinally in a concrete form, rail and arranged to have a -wedging action in the rall transversely of the rail, said means being constructed so as to exert a vertical expansive force when under transverse compression due to said wedging action. I

3. A resilient member adapted to be positioned in a concrete form rail and constructed to receive a transverse compression force, said member being formed so as to exert a vertical expansive force when under transverse compression. 7

4. A resilient member adapted to slidelongitudinally in a concrete form rail and con structed to have a wedging action in the rail transversely ofthe rail, said member being formed so as to exert a vertical expansive force when under transverse compression due to said wedging action.

a 5. A sheet metal member adapted toslide between the tread and base ot'a concrete form rail and having a cam portion between its upper and 'lowerpor-tions to create auwedging action transversely of. the rail, said. plate beingformedso as :to expand vertically when under compression .Ldue to said 'wedging action.

6. The ..combinati;on of a concrete form rail, andnieans therein adaptedto receive a transverse compressioniforce and co'nstrlicted to expand vertically in the-rail when under transverse compression.

$7. The combination of axconerete formrail having atrcad and a base, and 'a resilient member-"between and contacting. h; said 'treadand base and slidable longitudinally of therail, said member having a cam portion between the tread and base tocontact with another ,portioirto "create a wedging action, sald ne n1ber being formed to expand vers due to said wed-ging action. a a

8. The combination of. concrete fo tic al'ly when under transverse compression rm rail, a stake to engage the E311, and meansto be disposed between therall and stake and arranged to receive compressive forcebetween said rail and stake and to expand vertically in the rail.

9. The combination of a concrete form rail having a tread and a base, a stake to engage the rail, and a resilient member between and engaging said tread and base and having a cam portion to engage said stake, said member being slidable longitudinally of the rail and being formed to expand vertically when under transverse compression due to the wedging contact of said cam portion with the stake.

10. A concrete form rail having a tread and a base, and a brace connected to said tread and base and having an outwardly pressed stake-receiving portion. a

11. A concrete form rail having a tread and a base, and a brace connected to said tread and base and having an outwardly pressed stake-receiving portion, said portion having an upper apertureand a concaved portion below the aperture to lit the stake.

12. The combination of a concrete form rail having a base, a tread and stake receiving means, and a member slidably engaging said base and tread and having a cam portion to engage a stake in said means.

13. The combination of a concrete form rail having a base, a tread and stake receiving means, and a member slidably engaging said base and tread and having a cam por tion to engage a stake in said means, said member being formed to expand vertically neeting the tread and base and having a stake socket, and means slidable between the rail and a stake in said socket in contact with said tread and base and adapted to receive transverse compression force between said stake and rail, said means being constructed to expand vertically when under transverse compression.

15. The combination of a concrete form rail, a stake to engage the rail, means for simultaneously binding the rail and stake together and exerting a vertical expansive force in the rail. 7

16. The combination of two concrete form rails disposed end to end, stakes to engage said rails, and means operable tor simultaneously binding said rails and stakes together and exerting a vertical expansive force in said rails.

17. The combination of two concrete form rails disposed end to end and having stakereceiving means, and a joint member for the rails adapted to simultaneously bind the stakes and rails together and to expand vertically within the rails.

18. The combination of two concrete form rails disposed end to end and having stakereceiving means, and a resilient joint member slidable longitudinally in the rails and having cam portions to engage the stakes with a wedging action, said member being formed to expand vertically in the rails when subject to the wedging action.

19. The combination of two concrete form rails disposed end to end and having treads and bases, braces connecting said treads and bases and having stake sockets, and a resilient joint member slidable between said treads and bases and having cam portions to engage the stakes with a wedging action, said inemhers being formed to be expanded rertieallt when subject to said wedging action.

20. A concrete form con'iprising a rail having a web at its inner side and an outwardly extending tread flange, and a single line eontact portion above said flange at the web side of the T311.

In testimony whereof I hereunto allix my signature.

JOHN N. HELTZEIa 

